Below excerpt from CNA (www.channelnewsasia.com/news/singapore/everrise-maintenance-fined-water-contamination-waterford-13854128)
Not sure if MA selected the lowest quote amongst contractors. Clearly there are certain redlines to cost savings.
Under the Public Utilities Act, causing contamination to water supplied by PUB carries a maximum fine of S$50,000. Failure to ensure that regulated works are carried out by a licensed plumber carries a maximum fine of S$10,000.

Oh dear! It is really bad if the MA is unclear.
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